Biogeographic patterns and diversification of Polypedilum Kieffer (Diptera: Chironomidae) in South America: implications for the latitudinal diversity gradient in a megadiverse genus

• Grant number: 16/07039-8
• Support type: Scholarships in Brazil - Post-Doctorate
• Effective date (Start): November 01, 2016
• Effective date (End): December 31, 2020
• Field of knowledge: Biological Sciences - Zoology
• Principal researcher: Silvio Shigueo Nihei
• Grantee: Fabio Laurindo da Silva
• Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated scholarship(s): 18/01507-5 - Biogeographic patterns and diversification of Polypedilum Kieffer (Diptera: Chironomidae) in South America: implications for the latitudinal diversity gradient in a megadiverse genus, BE.EP.PD

Abstract

The global increase of species richness towards the equator has intrigued biogeographers for more than a century. Why do nearly all groups of organisms have more species in the tropics? Although numerous hypotheses have been proposed to elucidate, the so-called latitudinal gradient of diversity, the number of species in a given clade and region is ultimately explained by four major components: (I) the time since the clade colonized the region, (II) speciation rates, (III) extinction rates, and (IV) biogeographic processes such as dispersal (immigration of new lineages) or vicariance (geographic isolation). In this context, South America offers a unique opportunity to investigate the function of these components in the dynamic of diversification, by both harboring nearly half of the world's biological diversity and extending across the temperate and tropical latitudinal belts. The purpose of this study is to comprehend how the latitudinal diversity gradient is driven by the joint contribution of the processes of diversification, dispersal and vicariance. Using a molecular phylogenetics and phylogeographic framework, rates of speciation, extinction, dispersal and vicariance, associated with tropical and temperate biomes in South America, will be estimated using the species-rich genus of Polypedilum Kieffer (Diptera: Chironomidae) as a model organism. A main goal of this study is thus to improve the understanding of the role of biogeographic processes on determining biodiversity patterns.

Scientific publications

(12)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

HAMERLIK, L.; SILVA, F. L.; MASSAFERRO, J. n illustrated guide of subfossil Chironomidae (Insecta: Diptera) from waterbodies of Central America and the Yucatan Peninsul. JOURNAL OF PALEOLIMNOLOGY, v. 67, n. 3, p. 201-258, MAR 2022. Web of Science Citations: 0.

PINHO, LUIZ CARLOS; DA SILVA, FABIO LAURINDO. Description of two new species of Polypedilum (Asheum) and immature stages of Polypedilum (A.) curticaudatum (Diptera: Chironomidae). Zootaxa, v. 4759, n. 2, p. 179-190, APR 2 2020. Web of Science Citations: 0.

DA SILVA, FABIO LAURINDO; PINHO, LUIZ CARLOS. Macropelopia (Macropelopia) patagonica, a new Tanypodinae (Diptera: Chironomidae) from the Patagonian Andes. Zootaxa, v. 4731, n. 4, p. 574-580, FEB 10 2020. Web of Science Citations: 0.

STUR, ELISABETH; DA SILVA, FABIO LAURINDO; EKREM, TORBJORN. Back from the Past: DNA Barcodes and Morphology Support Ablabesmyia americana Fittkau as a Valid Species (Diptera: Chironomidae). DIVERSITY-BASEL, v. 11, n. 9 SEP 2019. Web of Science Citations: 0.

DE VASCONCELOS NASCIMENTO, CARLOS HENRIQUE; PEREIRA-SILVA, RAFAEL; ARRUDA DOS SANTOS, IRIS GABRIELLY; RODRIGUES, GILBERTO GONCALVES; DA SILVA, FABIO LAURINDO. Chironomidae (Insecta: Diptera) from four protected areas in the state of Pernambuco, Brazil. Aquatic Insects, v. 40, n. 2, p. 146-172, APR 3 2019. Web of Science Citations: 0.

DA SILVA, FABIO LAURINDO; STUR, ELISABETH. Pentaneurella katterjokki Fittkau & Murray (Chironomidae, Tanypodinae): redescription and phylogenetic position. ZOOKEYS, n. 833, p. 107-119, APR 1 2019. Web of Science Citations: 0.

DA SILVA, FABIO LAURINDO. Procladius travassosi (Oliveira, Messias & Silva-Vasconcelos, 1992) regarded as a new junior synonym of Procladius stroudi Roback 1982 (Diptera: Chironomidae: Tanypodinae). Zootaxa, v. 4555, n. 2, p. 280-282, FEB 13 2019. Web of Science Citations: 0.

HAMERLIK, LADISLAV; DA SILVA, FABIO LAURINDO; JACOBSEN, DEAN. Chironomidae (Insecta: Diptera) of Ecuadorian high-altitude streams: a survey and illustrated key. FLORIDA ENTOMOLOGIST, v. 101, n. 4, p. 663-675, DEC 2018. Web of Science Citations: 0.

DA SILVA, FABIO LAURINDO; SONG, CHAO. Oleia fieldsi sp n., a new Orthocladiinae (Diptera: Chironomidae) species from the Brazilian Atlantic rainforest. Zootaxa, v. 4526, n. 1, p. 96-100, NOV 28 2018. Web of Science Citations: 1.

TRIVINHO-STRIXINO, SUSANA; DA SILVA, FABIO LAURINDO. Chironomus rishii sp n., an enigmatic non-biting midge (Diptera: Chironomidae: Chironominae) from Neotropical region. Zootaxa, v. 4504, n. 3, p. 439-446, OCT 25 2018. Web of Science Citations: 1.

HAMERLIK, LADISLAV. Sub-fossil Chironomidae (Diptera) from lake sediments in Central America: a preliminary inventory. Zootaxa, v. 4497, n. 4, p. 559-572, OCT 11 2018. Web of Science Citations: 0.

DA SILVA, FABIO LAURINDO; FERRINGTON, JR., LEONARD C. Systematics of the new world genus Pentaneura Phillip (Diptera: Chironomidae: Tanypodinae): Historical review, new species and phylogeny. ZOOLOGISCHER ANZEIGER, v. 274, p. 60-89, MAY 2018. Web of Science Citations: 1.